[haimez]

Not totally, the problem being described as "Callback Hell" is in my experience: non-locality of code. Things that relate to one another should be spatially together for a programmer to write, read, understand- and NOT split into success and error conditions around the axis of final callback.

Even with named functions, this is the problem- right? You pass in a named callback and you have to find that function later when you're debugging to figure out what's going on. Locality of code means no breaking context to find something not already on screen and therefore easier programming.